IOS学习笔记012--结构体指针.doc

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1、IOS学习笔记012--结构体指针IOS瀛︿範绗旇--缁撴瀯浣撴寚閽?1锛夌粨鏋勬寚閽堝畾涔夊拰鍒濆鍖?a銆佹寚鍚戠粨鏋勪綋鍙橀噺鐨勬寚閽?鈶犱竴涓寚閽堝彉閲忕敤鏉ユ寚鍚戜竴涓粨鏋勪綋鍙橀噺鏃讹紝绉颁箣涓虹粨鏋勪綋鎸囬拡鍙橀噺銆傜粨鏋勬寚閽堝彉閲忎腑鐨勫€兼槸鎵€鎸囧悜鐨勭粨鏋勫彉閲忕殑棣栧湴鍧€銆傞€氳繃缁撴瀯鎸囬拡鍗冲彲璁块棶璇ョ粨鏋勫彉閲忥紝杩欎笌鏁扮粍鎸囬拡鍜屽嚱鏁版寚閽堢殑鎯呭喌鏄浉鍚岀殑銆?鈶′竴鑸舰寮忥細struct缁撴瀯鍚?*缁撴瀯鎸囬拡鍙橀噺鍚?涓庡墠闈㈢殑鍚勭被鎸囬拡鍙橀噺鐩稿悓锛岀粨鏋勬寚閽堝彉閲忎篃蹇呴』瑕佸厛璧嬪€

2、煎悗鎵嶈兘浣跨敤銆?璧嬪€兼槸鎶婄粨鏋勪綋鍙橀噺鐨勯鍦板潃璧嬩簣璇ユ寚閽堝彉閲忥紝涓嶈兘鎶婄粨鏋勫悕璧嬩簣璇ユ寚閽堝彉閲忋€?鈶粈涔堟槸缁撴瀯浣撴寚閽堬紵鐢ㄦ潵瀛樻斁缁撴瀯浣撳彉閲忓湴鍧€鐨勬寚閽堝彉閲忋€?鈶ｇ粨鏋勪綋鎸囬拡瀹氫箟鏍煎紡锛?struct缁撴瀯浣撳悕*鎸囬拡鍙橀噺鍚?浠ｇ爜锛?structCar{intlunzi;intspeed;};b銆佺粨鏋勫悕銆佺粨鏋勪綋鍙橀噺鍚嶃€佺粨鏋勪綋鎸囬拡缁撴瀯鍚嶅拰缁撴瀯鍙橀噺鏄袱涓笉鍚岀殑姒傚康锛屼笉鑳芥贩娣嗐€傜粨鏋勫悕鍙兘琛ㄧず涓€涓粨鏋勫舰寮忥紝缂栬瘧绯荤粺骞朵笉瀵瑰畠鍒嗛厤鍐呭瓨

3、绌洪棿銆傚彧鏈夊綋鏌愬彉閲忚璇存槑涓鸿繖绉嶇被鍨嬬殑缁撴瀯鏃讹紝鎵嶅璇ュ彉閲忓垎閰嶅瓨鍌ㄧ┖闂淬€傜粨鏋勬寚閽堝彉閲忥紝灏辨槸鐢ㄦ潵瀛樺偍缁撴瀯浣撳彉閲忓湴鍧€鐨勶紝灏辫兘鏇存柟渚垮湴璁块棶缁撴瀯鍙橀噺鐨勫悇涓垚鍛樸€?2锛夌粨鏋勪綋鎸囬拡闂存帴璁块棶鎴愬憳鍊?a銆佹寚鍚戠粨鏋勪綋鍙橀噺鐨勬寚閽?鍏惰闂殑涓€鑸舰寮忎负锛?(*缁撴瀯浣撴寚閽堝彉閲?.鎴愬憳鍚?渚嬪锛?(*pstu).num鎴栵細缁撴瀯鎸囬拡鍙橀噺->鎴愬憳鍚?渚嬪锛?pstu->numb銆佺粨鏋勪綋鍙橀噺鐨勬垚鍛樺€?structStuent{intage;char*n

4、ame;};structStuentstu1={17,"寮犱笁"};//鎴愬憳鍊兼湁涓や釜鈶爏tu1.age鈶tu1.namec銆佺敤缁撴瀯浣撴寚閽堥棿鎺ヨ闂粨鏋勪綋鍙橀噺鐨勬垚鍛樺€?structStudent*p=&stu1;//浣跨敤p鑾峰彇18鍜?寮犱笁涓?涓ょ鏂规硶锛?鏂规硶涓€锛?鈶?*p).age;//璁块棶骞撮緞鈶?*p).name;//璁块棶濮撳悕闇€瑕佹敞鎰忥細(*p)涓や晶鐨勬嫭鍙蜂笉鍙皯锛屽洜涓烘垚鍛樼"."鐨勪紭鍏堢骇楂樹簬"*".濡傛灉鍘绘帀鎷彿鍐欎綔*p.age鍒欑瓑鏁堜簬*(p.age),杩欐牱鎰忎箟灏卞畬

5、鍏ㄤ笉瀵逛簡銆?鏂规硶浜岋細鈶爌->age//璁块棶骞撮緞鈶->name//璁块棶濮撳悕3锛夌粨鏋勪綋宓屽浣跨敤a銆佺粨鏋勪綋宓屽浣跨敤鎴愬憳涔熷彲浠ュ張鏄竴涓粨鏋勶紝鍗虫瀯鎴愪簡宓屽鐨勭粨鏋勩€?缁撴瀯浣撳祵濂楋細缁撴瀯浣撳畾涔夌殑閲岄潰鏈夊叾浠栫粨鏋勪綋銆?缁撴瀯浣撲笉鍙互宓屽鑷繁鐨勫彉閲忥紝浣嗘槸鍙互宓屽鎸囧悜鑷繁杩欑绫诲瀷鐨勬寚閽堛€?b銆佹敞鎰忎簨椤癸細鈶犵粨鏋勪綋瀹氫箟涓彲浠ュ祵濂楀叾浠栫粨鏋勪綋绫诲瀷鐨勫彉閲忥紱鈶＄粨鏋勪綋瀹氫箟涓笉鍙互宓屽鑷繁杩欎釜绫诲瀷鐨勫彉閲忥紱鈶㈠彲浠ュ祵濂楄嚜宸辩被鍨嬬殑鎸囬

6、拡渚嬪锛?//瀹氫箟涓€涓狣ate鐨勭粨鏋勪綋structDate{intyear;intmonth;intday;};//瀹氫箟浜嗕竴涓鐢熺殑缁撴瀯浣?structStudent{char*name;intage;floatscore;//閿欒鍐欐硶structStudentstu;//杩欑鍐欐硶鏄敊璇殑锛屼笉鑳藉湪鑷繁璇村祵濂楄嚜宸辩被鍨嬬殑缁撴瀯structStudent*stu;//杩欑鍐欐硶鏄纭殑structDatebirthday;};c銆佸祵濂楃粨鏋勪綋濡備綍杩涜鍒濆鍖?structStudentstu1={"

7、寮犱笁涓?,19,80f,{1991,12,12}};//瀹氫箟浜嗕竴涓粨鏋勪綋鍙橀噺d銆佸祵濂楃殑缁撴瀯浣撳浣曡繘琛岃闂?printf("濮撳悕锛?s,骞撮緞锛?d(鐢熸棩锛?d-%02d-%02d),鎴愮哗锛?.2f",stu1.name,stu1.age,stu1.birthday.year,stu1.birthday.month,stu1.birthday.day);c銆佸绾у祵濂?渚嬪锛?//瀹氫箟涓€涓猅ime鐨勭粨鏋勪綋structTime{inthour;intmin;intsec;};//瀹氫箟涓€涓狣ate鐨勭粨鏋勪綋

8、structDate{intyear;intmonth;intday;//宓屽time缁撴瀯